JPS5842955A - 測光装置用デ−タ圧縮システム - Google Patents
測光装置用デ−タ圧縮システムInfo
- Publication number
- JPS5842955A JPS5842955A JP57146991A JP14699182A JPS5842955A JP S5842955 A JPS5842955 A JP S5842955A JP 57146991 A JP57146991 A JP 57146991A JP 14699182 A JP14699182 A JP 14699182A JP S5842955 A JPS5842955 A JP S5842955A
- Authority
- JP
- Japan
- Prior art keywords
- analog
- signal
- electrical signal
- analog electrical
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000013144 data compression Methods 0.000 title claims description 16
- 230000010354 integration Effects 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 5
- 238000005375 photometry Methods 0.000 claims description 5
- 235000008694 Humulus lupulus Nutrition 0.000 claims 1
- 210000001124 body fluid Anatomy 0.000 description 6
- 239000010839 body fluid Substances 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 244000208060 Lawsonia inermis Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/296,851 US4498781A (en) | 1981-08-27 | 1981-08-27 | Data compression system for a photometer |
| US296851 | 1981-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5842955A true JPS5842955A (ja) | 1983-03-12 |
Family
ID=23143845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57146991A Pending JPS5842955A (ja) | 1981-08-27 | 1982-08-26 | 測光装置用デ−タ圧縮システム |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4498781A (fr) |
| EP (1) | EP0073467A2 (fr) |
| JP (1) | JPS5842955A (fr) |
| CA (1) | CA1188538A (fr) |
| DK (1) | DK381882A (fr) |
| GR (1) | GR76903B (fr) |
| MX (1) | MX151623A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165560U (fr) * | 1987-04-16 | 1988-10-27 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637729A (en) * | 1983-12-14 | 1987-01-20 | Carrier Corporation | Fiber optic moisture analysis probe |
| DE3578582D1 (de) * | 1985-12-24 | 1990-08-09 | Barco Automation Nv | Verfahren zum messen einer physikalischen groesse mit numerischen daten unter verwendung einer analogen messvorrichtung und messapparat fuer dieses verfahren. |
| US5054878A (en) * | 1990-06-04 | 1991-10-08 | Conoco Inc. | Device for source compensating a fiber optic coupler output |
| US6891430B1 (en) * | 2000-07-05 | 2005-05-10 | Cirrus Logic, Inc. | Techniques for signal measurement using a conditionally stable amplifier |
| US8284971B2 (en) * | 2008-11-21 | 2012-10-09 | Envoy Medical Corporation | Logarithmic compression systems and methods for hearing amplification |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173983A (en) * | 1962-01-02 | 1965-03-16 | James L Engle | Arc positioning servo |
| US3970393A (en) * | 1974-07-23 | 1976-07-20 | Harris Corporation | Automatic compensation for densitometer imbalance |
| US4080075A (en) * | 1976-09-20 | 1978-03-21 | Foresight Enterprises, Inc. | Compensated densitometer |
-
1981
- 1981-08-27 US US06/296,851 patent/US4498781A/en not_active Expired - Lifetime
-
1982
- 1982-08-25 EP EP82107796A patent/EP0073467A2/fr not_active Withdrawn
- 1982-08-26 JP JP57146991A patent/JPS5842955A/ja active Pending
- 1982-08-26 CA CA000410166A patent/CA1188538A/fr not_active Expired
- 1982-08-26 DK DK381882A patent/DK381882A/da not_active Application Discontinuation
- 1982-08-26 MX MX194156A patent/MX151623A/es unknown
- 1982-08-27 GR GR69143A patent/GR76903B/el unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165560U (fr) * | 1987-04-16 | 1988-10-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0073467A2 (fr) | 1983-03-09 |
| CA1188538A (fr) | 1985-06-11 |
| DK381882A (da) | 1983-02-28 |
| GR76903B (fr) | 1984-09-04 |
| MX151623A (es) | 1985-01-14 |
| US4498781A (en) | 1985-02-12 |
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